// ****************************************************************************//// CGina.cpp//// Implementation file for the CGina driver class. CGina is for// 20-bit Gina, not Gina24.//// Set editor tabs to 3 for your viewing pleasure.//// ----------------------------------------------------------------------------//// This file is part of Echo Digital Audio's generic driver library.// Copyright Echo Digital Audio Corporation (c) 1998 - 2005// All rights reserved// www.echoaudio.com//// This library is free software; you can redistribute it and/or// modify it under the terms of the GNU Lesser General Public// License as published by the Free Software Foundation; either// version 2.1 of the License, or (at your option) any later version.//// This library is distributed in the hope that it will be useful,// but WITHOUT ANY WARRANTY; without even the implied warranty of// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU// Lesser General Public License for more details.//// You should have received a copy of the GNU Lesser General Public// License along with this library; if not, write to the Free Software// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA//// ****************************************************************************#include "CGina.h"#define GINA20_ANALOG_OUTPUT_LATENCY 137#define GINA20_ANALOG_INPUT_LATENCY 240#define GINA20_DIGITAL_OUTPUT_LATENCY 112#define GINA20_DIGITAL_INPUT_LATENCY 208/****************************************************************************Construction and destruction****************************************************************************///===========================================================================//// Overload new & delete so memory for this object is allocated// from non-paged memory.////===========================================================================PVOID CGina::operator new( size_t Size ){PVOID pMemory;ECHOSTATUS Status;Status = OsAllocateNonPaged(Size,&pMemory);if ( (ECHOSTATUS_OK != Status) || (NULL == pMemory )){ECHO_DEBUGPRINTF(("CGina::operator new - memory allocation failed\n"));pMemory = NULL;}else{memset( pMemory, 0, Size );}return pMemory;} // PVOID CGina::operator new( size_t Size )VOID CGina::operator delete( PVOID pVoid ){if ( ECHOSTATUS_OK != OsFreeNonPaged( pVoid ) ){ECHO_DEBUGPRINTF(("CGina::operator delete memory free failed\n"));}} // VOID CGina::operator delete( PVOID pVoid )//===========================================================================//// Constructor and destructor////===========================================================================CGina::CGina( PCOsSupport pOsSupport ): CEchoGals( pOsSupport ){ECHO_DEBUGPRINTF( ( "CGina::CGina() is born!\n" ) );m_wAnalogOutputLatency = GINA20_ANALOG_OUTPUT_LATENCY;m_wAnalogInputLatency = GINA20_ANALOG_INPUT_LATENCY;m_wDigitalOutputLatency = GINA20_DIGITAL_OUTPUT_LATENCY;m_wDigitalInputLatency = GINA20_DIGITAL_INPUT_LATENCY;}CGina::~CGina(){ECHO_DEBUGPRINTF( ( "CGina::~CGina() is toast!\n" ) );}/****************************************************************************Setup and hardware initialization****************************************************************************///===========================================================================//// Every card has an InitHw method////===========================================================================ECHOSTATUS CGina::InitHw(){ECHOSTATUS Status;//// Call the base method//if ( ECHOSTATUS_OK != ( Status = CEchoGals::InitHw() ) )return Status;//// Create the DSP comm object//ECHO_ASSERT(NULL == m_pDspCommObject );m_pDspCommObject = new CGinaDspCommObject( (PDWORD) m_pvSharedMemory,m_pOsSupport );if (NULL == m_pDspCommObject){ECHO_DEBUGPRINTF(("CGina::InitHw - could not create DSP comm object\n"));return ECHOSTATUS_NO_MEM;}//// Load the firmware//GetDspCommObject()->LoadFirmware();if ( GetDspCommObject()->IsBoardBad() )return ECHOSTATUS_DSP_DEAD;//// Clear the "bad board" flag//m_wFlags &= ~ECHOGALS_FLAG_BADBOARD;//// Must call this here after DSP is init to// init gains and mutes//Status = InitLineLevels();//// Set the S/PDIF output format to "professional"//SetProfessionalSpdif( TRUE );//// Get default sample rate from DSP//m_dwSampleRate = GetDspCommObject()->GetSampleRate();ECHO_DEBUGPRINTF( ( "CGina::InitHw()\n" ) );return Status;} // ECHOSTATUS CGina::InitHw()/****************************************************************************Informational methods****************************************************************************///===========================================================================//// Override GetCapabilities to enumerate unique capabilties for this card////===========================================================================ECHOSTATUS CGina::GetCapabilities(PECHOGALS_CAPS pCapabilities){WORD i;GetBaseCapabilities(pCapabilities);//// Add input gain to input busses//for (i = 0; i < GetFirstDigitalBusIn(); i++){pCapabilities->dwBusInCaps[i] |= ECHOCAPS_GAIN |ECHOCAPS_MUTE;}pCapabilities->dwInClockTypes |= ECHO_CLOCK_BIT_SPDIF;return ECHOSTATUS_OK;}//===========================================================================//// GetInputClockDetect returns a bitmask consisting of all the input// clocks currently connected to the hardware; this changes as the user// connects and disconnects clock inputs.//// You should use this information to determine which clocks the user is// allowed to select.//// Gina20 only supports S/PDIF input clock.////===========================================================================ECHOSTATUS CGina::GetInputClockDetect(DWORD &dwClockDetectBits){if ( NULL == GetDspCommObject() || GetDspCommObject()->IsBoardBad() ){ECHO_DEBUGPRINTF( ("CGina::GetInputClockDetect: DSP Dead!\n") );return ECHOSTATUS_DSP_DEAD;}DWORD dwClocksFromDsp = GetDspCommObject()->GetInputClockDetect();dwClockDetectBits = ECHO_CLOCK_BIT_INTERNAL;if (0 != (dwClocksFromDsp & GLDM_CLOCK_DETECT_BIT_SPDIF))dwClockDetectBits |= ECHO_CLOCK_BIT_SPDIF;return ECHOSTATUS_OK;} // GetInputClockDetect//===========================================================================//// QueryAudioSampleRate is used to find out if this card can handle a// given sample rate.////===========================================================================ECHOSTATUS CGina::QueryAudioSampleRate(DWORD dwSampleRate){if ( dwSampleRate != 44100 &&dwSampleRate != 48000 ){ECHO_DEBUGPRINTF(("CGina::QueryAudioSampleRate() - rate %ld invalid\n",dwSampleRate) );return ECHOSTATUS_BAD_FORMAT;}ECHO_DEBUGPRINTF( ( "CGina::QueryAudioSampleRate()\n" ) );return ECHOSTATUS_OK;} // ECHOSTATUS CGina::QueryAudioSampleRatevoid CGina::QuerySampleRateRange(DWORD &dwMinRate,DWORD &dwMaxRate){dwMinRate = 44100;dwMaxRate = 48000;}// *** CGina.cpp ***